Detector Duo Eng

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INGEGNERIA DEI SISTEMI S.p.A.

Rev. 1.1

N°doc: MN/2009/028

Config.: DETECTOR DUO-PRCS-OUT-MN

DETECTOR DUO

USER MANUAL

DETECTOR

DUO

SYSTEM –

User manual

June 2010



IDS Ingegneria Dei Sistemi S.p.A. N doc: MN/2009/028 - Rev. 1.1DETECTOR DUO SYSTEM – User manual

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All information contained in this document is property of IDS. All rights reserved

KEYWORDS GEORADAR, DETECTOR DUO, ANTENNA

SUMMARY This manual contains a complete description of the Detector Duoradar system, detailing the assembly procedure, the correct use of

the data acquisition software, the work procedure and the generaloperating procedures of the system.

Document Evolution

Revision Data Reason of modification

Rev. 1.0 July 2009 First edition. It has been added a warning disclaimerand a new installation kit.

Rev. 1.1 June 2010 Document revision: modified DAD control unitdescription (see Par .3.1.1)

FCC Information updated (see Disclaimers)

SW Versions covered by this manual

DETECTOR DUO V.02.00.000, 02.00.001, 02.00.006

OUR CONTACTS

IDS Ingegneria dei Sistemi S.p.A. – GeoRadar Division

Via Enrica Calabresi, 20

56121 Montacchiello (PISA) - ITALIA

Tel: +39.050.3124350

Fax: [email protected]

Customer Care department:

[email protected]

Tel.: +39.050.3124 355/356

Sales & Marketing department:

[email protected]

Tel.: +39.050.3124 352

mailto:[email protected]












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DISCLAIMER

IDS INCLUDING ITS SUBCONTRACTORS OR SUPPLIERS ARE NOTRESPONSIBLE FOR ANY AND ALL CLAIMS RESULTING FROM THEUSE OF THE EQUIPMENT BY THE BUYER, WHETHER USEDSEPARATELY OR IN COMBINATION WITH OTHER PRODUCTS,WHICH ASSUMES ALL RELEVANT RISKS AND LIABILITY.EQUIPMENT MAY INCLUDE SPECIFIC “OPERATIONAL”

SOFTWARE WITH AUTOMATIC DATA PROCESSING ANDANALYSIS TOOLS. WHILE EVERY EFFORT IS MADE TO ENSURETHE ACCURACY OF THE INFORMATION PROVIDED BY THOSETOOLS, THEY MUST NOT BE INTENDED AS A SUBSTITUTE FORPEOPLE ANALYSIS; RATHER, THEY HAVE TO BE INTENDED ASAN ADVISOR AND THE USER MUST BE AWARE THAT THERESULTS PROVIDED BY THEM MAY BE NOT ABSOLUTELYERROR FREE AND MUST NOT COMPLETELY RELY ON THERESULTS PROVIDED BY THEM. IDS ASSUMES NO LIABILITY FORANY DIRECT, INDIRECT SPECIAL, INCIDENTAL ORCONSEQUENTIAL DAMAGES OR INJURIES CAUSED BY SUCHRELIANCE. ANY PERSON OR ENTITY, WHO COMPLETELY RELIES

ON INFORMATION OBTAINED FROM THE AUTOMATED DATAPROCESSING/ANALYSIS TOOLS ONLY, DOES SO AT HIS/HER OWNRISK .




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CONFORMITY TO EUROPEAN REGULATIONS

The equipment conforms to the following requirements set by ECregulations, including subsequent modifications, and to the legislation set by the member states that implement these regulations:

1999/05/EEC Radio Directive

Warning: this equipment is destined for use in industrial environments(Class A apparatus). In residential, commercial and light industryenvironments, this apparatus may generate radio interference: in this case,the user may be required to operate while taking appropriatecountermeasures.

The apparatus is sensitive to the presence of external electromagnetic fields,which may reduce its performance.

RADIO-FREQUENCY EXPOSURE COMPLIANCE

This product operated is usually operated at least 1 m from the operator.

Typical power density levels at a distance of 1 m or greater is below 1

W/cm2 (0.01 W/m2) which are far below the levels specified by thecurrent regulations.

Thus, this product pose no health and safety risk when operated in thenormal manner of intended use.




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!WARNING

CLEANING INFORMATION

Before cleaning any external parts of the apparatus, make surethat all cables have been disconnected, including the powersupply cable. If a damp cloth is used, make sure it is not too wet,to avoid any damage to the electrical components of theequipment. Wait until the equipment is totally dry beforereconnecting the cables.

The Detector Duo should be cleaned periodically using a dampcloth.

Do not use solvents or abrasive detergents.Do not apply liquid directly to the electrical contacts of thevarious connectors. If a specific spray is used to clean the PCTFT monitor, make sure it is not flammable; ion any case, do notspray it directly on the screen, instead, spray it onto the cleaningcloth.




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BATTERIES REMOVAL INFORMATION

Laptop Batteries:

Manufacturer: PANASONIC

Type: Li-ion Ni

Characteristics: 10.65V 5.7Ah

Removal instructions:

1. turn off the laptop;2. open the drawer with the symbol of the batteries;

3. extract the battery pack pulling the tab.

Radar batteries:

Manufacturer: FIAMM FG21202 / SAFT MP176065

Type: rechargeable lead acid / rechargeable lithium-ion

Characteristics: 12V & 12Ah / 15V & 6.8Ah

Removal instructions:

1. disconnect the battery from the instrument:a. pull the connector wings;

b. separate the connectors;2. remove the battery from the cover (optional) opening the

strap.




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RECICLYING

The crossed out wheeled bin symbol shown on the equipment indicates thatthe product must be recycled separately from other waste at the end of itsuseful life.

Separate waste disposal of this product at the end of its useful life will beorganised and managed by IDS. When you decide to dispose of theequipment, contact IDS and follow the system that IDS has set up to permitthe separate collection of the apparatus at its life end.

Adequate separate collection for its subsequent recycling, treatment and

environmental friendly disposal contribute towards avoiding anyunnecessary effects on the environment and to health and favour the reuse orrecycling of the materials that make up the equipment. Unauthorised disposalof this product as unsorted waste by its possessor will lead to anadministrative penalty foreseen by national regulations.




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WARRANTY CERTIFICATE CONDITIONSA. Standard Warranty Conditions

1. IDS Ingegneria dei Sistemi S.p.A, (hereinafter referred to as IDS or Seller), warrants that its

products shall be free from defects in material and workmanship, for a period of 12 monthsfrom the delivery date duly registered and certified (“Effective Date”) in the “WarrantyRegistration Form”. IDS shall repair or replace Products or parts thereof found faulty (the“Faulty Parts”) which are returned to IDS, and which, at IDS’s judgment, were defective orbecame defective during its normal use. Seller’s obligations shall not apply to Faulty Partsthat:

(a) Buyer do not properly store, install, use, or maintain;

(b) Buyer modify, or perform tests which are not approved in writing by the Seller;

(c) Buyer have subjected to any kind of misuse, detrimental exposure beyond itsintended purpose or damaged in an accident or by natural disaster or calamities.

(d) Are repaired by other than IDS personnel; in which have been installed HW/SW

accessories not supplied by IDS; are integrated or connected to equipmentdifferent from the ones supplied by IDS (except the PC data Logger conform toIDS specifications);

(e) Whose operational software was not installed as per IDS instruction (see IDSUser’s Guide for the Data Acquisition Software);

B. Warranty Procedure

1. To proceed in the application of warranty terms, Buyer shall have to contact IDS CustomerCare Office to get the clearance to return the Faulty Parts.

2. The Faulty Parts once received by IDS will be inspected to verify they are eligible for repairor replacement..

3. Buyer is responsible for ensuring that the Faulty Parts be returned to IDS with a suitablepacking (it is recommended that the original packing be saved for a better understand of thefailure cause); IDS will not be obliged to repair or replace Faulty Parts damaged from abuse,misuse, negligence, accident loss or damage in transit.

4. The Shipping costs for Products returned during the warranty period, are as follows:

(f)by Buyer

(g)Seller

5. The warranty period on the repaired or replaced Faulty Parts is six months or the unexpiredportion of warranty on such Faulty Parts whichever date comes later.

C. Special Warranty Terms for IBIS –

M Units

1. IDS offers the Buyer special Support and Maintenance Plans to be executed conditionally bythe Buyer. These Plans set forth special Warranty conditions which are detailed in therelevant options purchased.

D. Limited Liability

2. Seller’s sole obligation and liability under this Agreement shall be limited to the repair orreplacement of the Product, or the refund of the purchase price at the Seller’s sole option.This Article sets forth the sole and exclusive remedies for claims based upon defects ornonconformity of the Products, whether the claim is on contract, warranty, tort (includingnegligence), strict liability, or otherwise.

3. EXCEPT AS PROVIDED IN THIS DOCUMENT, THE FOREGOING WARRANTIES ARE IN

LIEU OF ALL OTHER WARRANTIES, AND SELLER MAKES NO OTHER WARRANTIES




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WHETHER WRITTEN, ORAL, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING BUTNOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FORPARTICULAR PURPOSE.

IMPORTANT NOTE FOR THE US CUSTOMERS

FCC ID: UFW-DETDUO-FW

This device complies with part 15 of the FCC Rules:

Operation is subject to the following conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, Including interference that may cause undesired operation

Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliancecould void the user’s authority to operate the equipment.

Operation of this device is restricted to law enforcement, fire and rescue officials, scientific research institutes,

commercial mining companies, and construction companies. Operation by any other party is a violation of 47 U.S.C.§ 301 and could subject the operator to serious legal penalties.

Coordination Requirements.

(a) UWB imaging systems require coordination through the FCC before the equipment may be used. The operatorshall comply with any constraints on equipment usage resulting from this coordination.

(b) The users of UWB imaging devices shall supply detailed operational areas to the FCC Office of Engineering andTechnology who shall coordinate this information with the Federal Government through the NationalTelecommunications and Information Administration. The information provided by the UWB operator shall includethe name, address and other pertinent contact information of the user, the desired geographical area of operation, andthe FCC ID number and other nomenclature of the UWB device. This material shall be submitted to the following

address:

Frequency Coordination Branch., OET

Federal Communications Commission

445 12th Street, SW

Washington, D.C. 20554

ATTN: UWB Coordination

(d) Users of authorized, coordinated UWB systems may transfer them to other qualified users and to differentlocations upon coordination of change of ownership or location to the FCC and coordination with existing

authorized operations.

(e) The NTIA/FCC coordination report shall include any needed constraints that apply to day-to-day operations.Such constraints could specify prohibited areas of operations or areas located near authorized radio stations forwhich additional coordination is required before operation of the UWB equipment. If additional local coordination isrequired, a local coordination contact will be provided.

(f) The coordination of routine UWB operations shall not take longer than 15 business days from the receipt of thecoordination request by NTIA. Special temporary operations may be handled with an expedited turn-around timewhen circumstances warrant. The operation of UWB systems in emergency situations involving the safety of life or property may occur without coordination provided a notification procedure, similar to that contained in CFR47Section 2.405(a)-(e), is followed by the UWB equipment user.

Notice: Use of this device as a wall imaging system is prohibited by FCC regulations.




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IMPORTANT NOTE FOR THE CANADIAN CUSTOMERS

IC Certification Number: IC:8991A – DETDUOFW

This device complies with the requirements of IC Standard RSS-220

This Ground Penetrating Radar Device shall be operated only when in contact with or within 1 m of the ground.

This Ground Penetrating Radar Device shall be operated only by law enforcement agencies, scientific researchinstitutes, commercial mining companies, construction companies, and emergency rescue or firefightingorganizations.




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INDEX

1. Introduction ........................................................................................................................... 14

1.1 Scope .............................................................................................................................. 15

1.2 Trademarks .................................................................................................................... 15

1.3 Acronyms and Definitions .............................................................................................. 15

1.3.1 Acronyms .............................................................. ......................................................... 15

1.3.2 Definitions ............................................................. ......................................................... 15

2. Overview................................................................................................................................. 17

2.1 How to use this manual .................................................................................................. 17

2.2 Background knowledge required ................................................................................... 17

3. User guide ............................................................................................................................... 18

3.1 Description of the hardware .......................................................................................... 18

3.1.1 The Detector Duo Control Unit ............................................................. ......................... 19

3.1.2 The antenna box ....................................................................................................... ...... 22

3.1.3 Power supply ......................................................... ......................................................... 23

3.1.3.1 Charge level and battery replacement .............................................................. ... 23

4. Assembly procedure .............................................................................................................. 25

4.1 How to assemble the trolley ........................................................................................... 25

4.2 Connecting the cables .................................................................................................... 27

4.2.1 Connecting the battery ............................................................... .................................... 27

4.2.2 Mounting the antenna and connecting the cables ........................................................... 27

4.2.3 Mounting the PC notebook and the sunshade ....................................... ......................... 29

4.2.4 Connecting the position sensor ....... ................................................................. .............. 31

4.2.5 Removing the trolley wheels .......................................................................................... 32

5. The acquisition software ....................................................................................................... 34

5.1 The Notebook Computer ................................................................................................ 34

5.2 Software installation and configuration ........................................................................ 35

5.3 The operational phases .................................................................................................. 40

5.3.1 Running the software ...................................................... ............................................... 40

5.3.2 Pre-acquisition commands .................................................................... ......................... 41

5.3.3 Commands used during acquisition ........................................... .................................... 45

5.3.3.1 Acquisition for on-site detection ........................................................... .............. 47

5.3.3.2 Acquisition for mapping ..................................................................................... 52

5.3.4 Depth calibration ............................................................................................................ 56

5.3.5 Post-acquisition commands ........................................................ .................................... 57

5.4 Error messages .............................................................................................................. 63

6. Using GPS with the detector duo System ............................................................................ 64

7. Work procedure flowchart ................................................................................................... 71

8. How to use the detector ......................................................................................................... 72




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9. On line assistance ................................................................................................................... 75

9.1 Remote assistance using Webex Support Center ........................................................... 75

9.1.1 How to use the Webex service ........................................ ............................................... 75

FIGURES INDEX

FIG. 3.1 – OVERVIEW OF THE DETECTOR DUO AND ITS COMPONENTS ..................................... 18

FIG. 3.2 – THE CONTROL UNIT ............................................................... ................................................ 19

FIG. 3.3 – THE ANTENNA-CONTROL UNIT CONNECTION CABLE .................................................. 20

FIG. 3.4 – THE INVERTED NETWORK CABLE ..................................................................................... 20

FIG. 3.5 – THE POWER SUPPLY CABLE ................................................................................................ 21

FIG. 3.6 – BATTERY CABLE CONNECTION FOR THE NOTEBOOK PC AND THE DAD ................ 21

FIG. 3.7 – IDS ATS DUAL 250-700 ANTENNA BOX ............................................................................... 22

FIG. 3.8 – LEAD BATTERY ............................................................ ........................................................... 23

FIG. 3.9 – BATTERY STATUS SIGNAL (LEFT) AND THE BATTERY CHARGER (RIGHT) ............. 24

FIG. 4.1 – TROLLEY FOLDED IN ITS CARRIER BAG .......................................................................... 25

FIG. 4.2 – OPENING THE TROLLEY ....................................................... ................................................. 26

FIG. 4.3 – UPPER BLOCKING MECHANISM ............................................................... ........................... 26

FIG. 4.4 – BATTERY AND CABLING SUPPORT ......................................................... ........................... 27

FIG. 4.5 – FIXING THE ANTENNA BOX ........................................................... ...................................... 28

FIG. 4.6 – ANTENNA-RADAR CONNECTION ......................................................................................... 28

FIG. 4.7 – TROLLEY-ANTENNA LOCKING SYSTEM ........................................................... ................ 29

FIG. 4.8 – FIXING THE NOTEBOOK PC ............................................................................................. ..... 29

FIG. 4.9 – ASSEMBLING THE SUNSHADE ....................................................... ...................................... 31

FIG. 4.10 – SUNSHADE ON HORIZONTAL SCREEN .................................................................... ........ 31

FIG. 4.11 – CONNECTING THE POSITION SENSOR ............................................................................. 32

FIG. 4.12 – REMOVING THE TROLLEY WHEELS ................................................................ ................. 33

FIG. 5.1 – DETECTOR DUO SETUP ICON ......................................................... ...................................... 35

FIG. 5.2 – DETECTOR DUO WELCOME WINDOW ............................................................................... 35

FIG. 5.3 – SETUP TYPE WINDOW ........................................................................................................... 36

FIG. 5.4 – PRE-INSTALLATION WINDOW ....................................................... ...................................... 36

FIG. 5.5 – INSTALLATION COMPLETED WINDOW ............................................................. ................ 37

FIG. 5.6 – SELECTING THE ETHERNET CARD (TCP/IP) ..................................................................... 38

FIG. 5.7 – CHANGING THE IP ADDRESS ............................................................................... ................ 39

FIG. 5.8 – ACQUISITION SOFTWARE ICON .......................................................................................... 40

FIG. 5.9 – INITIALIZING WINDOW ................................................................... ...................................... 41

FIG. 5.10 – GAIN CALIBRATION UNDERWAY .......................................................... ........................... 42

FIG. 5.11 – ADVANCED SETTINGS WINDOW ................................................. ...................................... 43

FIG. 5.12 – ACQUISITION SELECTION WINDOW ........................................... ...................................... 45

FIG. 5.13 – NEW ACQUISITION WINDOW ........................................................ ...................................... 46

FIG. 5.14 – RADAR MAP DURING THE ACQUISITION PHASE .......................................................... 48

FIG. 5.15 – IDENTIFYING A TARGET ............................................................... ...................................... 49

FIG. 5.16 – THE ANTENNA CENTER POINT .......................................................................................... 49




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FIG. 5.17 – UP/DOWN FUNCTIONS .................................................................................................. ........ 50

FIG. 5.18 – DUAL DISPLAY DURING ACQUISITION ............................................................ ................ 51

FIG. 5.19 – ICONS FOR TYPES OF PIPES AND CABLES ...................................................................... 52

FIG. 5.20 – DIAGRAM OF THE T-L CARTESIAN REFERENCE SYSTEM ......................................... 53

FIG. 5.21 – ACQUISITION PARAMETERS WINDOW ............................................................. ................ 55

FIG. 5.22 – DELETING A SURVEY........................................................................................................... 58

FIG. 5.23 – HOW TO RENAME A SURVEY ....................................................... ...................................... 59

FIG. 5.24 – INSERTION OF A MARKER DURING THE REVIEW PHASE ........................................... 60

FIG. 5.25 – PRINT FUNCTION ....................................................... ........................................................... 61

FIG. 5.26 – FINAL PRINTOUT OF A RADAR MAP ................................................................................ 62

FIG. 5.27 – CLOSING THE PROGRAM ................................................... ................................................. 62

FIG. 6.1 – CONNECTING THE GPS TO THE NOTEBOOK COMPUTER .............................................. 64

FIG. 6.2 – EXTERNAL DEVICE SETTINGS COMMAND ................................................................ ...... 65

FIG. 6.3 - EXTERNAL DEVICE SETTINGS WINDOW ........................................................... ................ 65

FIG. 6.4 – COM SETTINGS WINDOW ................................................................ ...................................... 66

FIG. 6.5 – GPS COORDINATES ................................................................ ................................................. 67

FIG. 6.6 – GPS SPY ..................................................................................................................................... 68

FIG. 6.7 – EXAMPLE OF A GPS FILE................................................................ ...................................... 69

FIG. 6.8 – EXAMPLE OF A KML FILE .................................................................................................... 69

FIG. 6.9 – EXAMPLE OF A VISUALIZATION KML FILE ............................... ...................................... 70

FIG. 8.1 – TRACE OF A PIPE PERPENDICULAR TO THE DIRECTION OF INVESTIGATION AND AFLAT INTERFACE ................................................................ ............................................................ 72

FIG. 8.2 – MAPS SHOWING TRACES OF AN INTERFACE AND PIPES PERPENDICULAR TO THEDIRECTION OF INVESTIGATION.................................................................................................. 73

FIG. 8.3 – EXAMPLE OF MAP INTERPRETATION ................................................................ ................ 74

FIG. 9.1 – MAIL SENT BY IDS TO THE CLIENT ......................................................... ........................... 75

FIG. 9.2 – CLIENT DATA INSERTION FORM......................................................................................... 76

FIG. 9.3 – WEBEX SET UP WINDOW ...................................................................................................... 76

FIG. 9.4 – WELCOME TO WEBEX SUPPORT CENTER WINDOW ...................................................... 77

FIG. 9.5 – COMMAND ACCEPTANCE WINDOW ....................................................... ........................... 78

TABLES INDEX

TAB. 1.1 – CONTACT ADDRESSES FOR TECHNICAL AND SALES ASSISTANCE ......................... 14

TAB. 3.1 – CONTROL UNIT CHARACTERISTICS ................................................................ ................. 22




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1. INTRODUCTION

The Detector Duo is an innovative system capable of detecting tubes

and both metallic and nonmetallic cables buried underground.Following standard radar principles, the Detector Duo uses a high

performance electromagnetic sensor equipped with e.m. transmittersand receivers.

The fundamental characteristic of this system is the simultaneous useof two frequencies, permitting the identification of both shallow anddeep utilities at the same time.

The groundbreaking control unit is extremely compact and lightweight

at just 1Kg , and is compatible with 2 ATS antennas with frequenciesof 700MHz and 250MHz located in a single container. The simplicityof this instrument means that a brief training course is sufficient to

permit it to be used correctly.

I.D.S. Ingegneria dei Sistemi S.p.A. – Georadar Division

Via Enrica Calabresi, 24

56121 Montacchiello (PI)

Sales & Marketing Department:

Paolo Papeschi:

( [email protected])

Tel.: +39.050.3124.374

Customer Care Department:

Davide Morandi:

([email protected]);

Valter Baroncini:

([email protected]);

Tel.: +39.050.3124.355/356

Fax: +39.050.3124.205

E-mail: [email protected]

Web site: http://www.idsgeoradar.com/

Tab. 1.1 –

Contact addresses for technical and sales assistance









http://www.georadar.ids-spa.it/











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The simple acquisition software and automatic data saving proceduresoperate well on both Windows 2000 Professional and Windows XPProfessional. For details on the required characteristics of thenotebook PC, see Paragraph 5.1.

From an operative point of view, the Detector Duo can perfectly adaptto all applications for pipe and cable detection in a typical roadworksenvironment, both over smooth and rough ground.

Contact IDS Georadar Division directly for all technical andcommercial assistance.

1.1 Scope

This document describes how to use the Georadar Detector Duo,including both its hardware and software components.

1.2 Trademarks

WINDOWS 2000PROFESSIONAL/WINDOWS XPPROFESSIONAL/WINDO

WS 7

Microsoft Corporation

DETECTOR DUO IDS Ingegneria dei SistemiS.p.A.

1.3 Acronyms and Defi ni tions

1.3.1

Acronyms

DETECTOR DUO: double antenna digital pipe detection system.

1.3.2

Definitions

Antenna trolley: a unit that holds all the equipment necessary foracquisition in the field.

Centerpoint : the ideal point of the trolley, situated in the center of the box containing the antennas; it represents the starting point for allscans.




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Data processing: this is applied to the raw data to permit the acquiredsections to be viewed in a comprehensible way.

F ield survey: a group of field acquisitions relating to a single survey.

Handle: a extractable handle is gripped by the operator to move theantenna trolley.

Maps: graphics showing the change in received radar signal (signalintensity in gray scale) with respect to the scanning direction.

Position sensor: a distance measurement device fixed inside one ofthe trolley wheels, which constantly signals the distance travelled fromthe start of the scan back to the Control Unit .

Raw data: unprocessed data obtained during a field survey.

Receiver : part of the antenna dedicated to detecting the signals. It islodged in the same container as the transmitter.

Scan : a single movement of the antenna trolley from the beginning tothe end of a pre-established path

Setup: initialization of a piece of equipment or a software process.

Survey: the name given to a collection of scans, which together coverall the areas of a large investigation: typically an entire town or a largeurban area

Transmitter : part of the antenna dedicated to emitting the radarsignals. It is lodged in the same container as the receiver.

Utilities: the objects the Detector Duo searches for, i.e. pipessupplying gas and water, electricity cables, etc.




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2. OVERVIEW

2.1

How to use this manual

This Detector Duo user manual is subdivided as follows:

Chap. 1: Introduction.

Chap. 2: Overview.

Chap. 3: User guide.

Chap. 4: Assembly procedure.

Chap. 5: The acquisition software. Chap. 6: Work procedure flowchart.

Chap. 7: How to use Detector Duo.

2.2 Background knowledge required

The following background knowledge is required to be able to useDetector Duo:

Windows 2000 Professional, Windows XP Professional orWindows 7 operating system.

For any difficulties with this aspect, the user should make reference to publications available on this topic or to the manual provided with thesystem.




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3. USER GUIDE

3.1

Description of the hardware

The Detector consists of the following parts (see Fig. 3.1):

DAD DECT DUO Control unit(1).

Two wheeled trolley used to move the system (2).

Power cable (3).

Inverted network cable (4).

Antenna Box - Control Unit connection cable (5). Position sensor connection cable (6).

Position sensor (7).

Detector Duo Antenna (8).

12V lead battery (see Fig. 3.8) (9) .

Notebook computer (10) (see specifications in paragraph 5.1).

Fig. 3.1 – Overview of the Detector Duo and its components

1

6

5

4

3

2

8

76

10

9




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3.1.1 The Detector Duo Control Unit

The control unit has the following main functions:

To communicate with the antenna.

To communicate with the notebook computer.

To pilot the position sensor.

The control unit (Fig. 3.2) is fitted with the following connection ports:

Position sensor port (4) : the position sensor is connected to thecontrol unit using the specific cable. This port is marked asWHEEL.

Fig. 3.2 – The Control Unit

Antenna port (3) : using the cable shown in Fig. 3.3, thisconnects the Control Unit to the antenna. It is marked as ANT.1.

5

1 2

3

4




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Fig. 3.3 – The Antenna-Control Unit connection cable

Network port (2): a inverted network cable (Fig. 3.4) connectsthe control unit to the notebook PC. This port is marked LAN.

Fig. 3.4 – The inverted network cable

Power supply port (1): this connects the battery to the Control Unitusing the power supply cable (Fig. 3.5).




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Fig. 3.5 – The power supply cable

On button (red – 5) with spy light (blue - 6): pressing this buttonstarts up the entire system. A blue spy light switches onautomatically when the button is pressed and indicates that thesystem is being powered (Fig. 3.2).

Fig. 3.6 – Battery cable connection for the notebook PC and the DAD

Press the button to switch on the DAD control unit (Fig. 3.6). This button has to be kept pressed until a blue light appear. If the

DetectorDuo software is not activated within 30 seconds, the indicatorlight will start to flash. As soon as the DetectorDuo software isactivated the indicator light stops flashing and appears a constant bluelight. If, however, the Software is not activated within about 2 minutes30 seconds, the DAD unit will automatically shut down. Once theDetectorDuo software has been shut down, the indicator will flash forabout 30 seconds and will automatically shut down after 2 minutes.




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GENERAL CHARACTERISTICS OF THE CONTROL

UNIT

NUMBER OF CONNECTABLE

ANTENNAS

2

VOLTAGE 12V +/- 10%

ENVIRONMENT FEATURES IP65

PANEL CONNECTORS LAN, BATTERY, ANT.1,WHEEL

ABSORBED POWER 8W (1 antenna)

OPERATING TEMPERATURE -10 / +40 °C

Tab. 3.1 – Control Unit characteristics

3.1.2 The antenna box

The detector duo system can be used with the box containing twoantennas, one with a frequency of 700MHz and the other with 250MHz (see Fig. 3.7):

Fig. 3.7 – IDS ATS DUAL 250-700 antenna box




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NOTE: it is also possible to connect the DAD to one of the two ATSsingle frequency models at 250MHz or 700MHz.

3.1.3 Power supply

The Control Unit is powered by : A lead 12V, 12Ah battery (see Fig. 3.8).

Fig. 3.8 – Lead Battery

3.1.3.1 Charge level and battery replacement

When the spy light is lit next to the power supply port on the radar,this indicates that the system is powered: if it is not lit, this means that

either the cable is not connected correctly or that the battery is flat(less than 10V). The battery has an autonomy of around 12 hours.When the battery runs, down the instrument must be switched off,another battery connected, and the system can be started up again. Aflat battery can be completely recharged in around 3 hours with theappropriate battery charger (see Fig. 3.9 right). A software message onthe PC informs the user of the battery charge level with a BATT

button (see Fig. 3.9 left), which changes color as follows:

Green if the battery is fully charged,

Yellow if it is semi-charged,

Red if the battery is flat.

To connect

to the power

supply cable




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Fig. 3.9 – Battery status signal (left) and the battery charger (right)




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4. ASSEMBLY PROCEDURE

4.1

How to assemble the trolley

Follow the procedure below to assemble the trolley:

Remove the trolley from its bag (Fig. 4.1).

Open the trolley from position (1) to the upright position (2),gripping the handle (3) shown in Fig. 4.2.

Fig. 4.1 – Trolley folded in its carrier bag

Assemble the central part of the trolley (4) by automaticallyclicking the two cylindrical pins into their supports (see thedetail of Fig. 4.2).




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Fig. 4.2 – Opening the trolley

Unlock the two unblocking levers by rotating them outwards (2and 3) and pull the handle (4) upwards (1), regulating it asrequired (Fig. 4.3).

Fig. 4.3 – Upper blocking mechanism

1

2

4

3

4

1

32

4

SUPPORTS

PINS




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4.2 Connecting the cables

4.2.1 Connecting the battery

Fig. 4.4 – Battery and cabling support

Place the battery in its yellow bag (Fig. 4.4).

Place the bag on the PVC base plate and fix the bag to thesupport with the strap provided (1).

Connect the power supply cable to the BATTERY port on theControl Unit (3) and to the white connector to link it to the

battery(2).

4.2.2

Mounting the antenna and connecting the cables

Place the antenna under the trolley (Fig. 4.5), inserting the two ends (1and 2) into their PVC supports (3 and 4).

Insert the pins (5 and 6) and block them with the nuts provided.

Connect the cable linking the antenna port (7) to the ANT.1 porton the Control Unit (Fig. 4.5 and Fig. 4.6).

BASE PLATEIN PVC

1

3

2




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Fig. 4.5 – Fixing the antenna box

Fig. 4.6 – Antenna-radar connection

Under the battery plate you can find the antenna-trolley lockingsystem (see Fig. 4.7); in order to lock the trolley to the antenna,the user has to move the locking system down to the top of theantenna; then push down the front of the antenna and at thesame time fix the system to the central pin. After this, turn downthe lever and close it.

1

6

5

4

3

2 7

ANT.1

7




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Fig. 4.7 – Trolley-antenna locking system

4.2.3 Mounting the PC notebook and the sunshade

The upper base plate on the trolley(2) is used to fix the notebookPC (1) with four Velcro strips (A, B, C, D), as shown in Fig.4.8.

Once the notebook is fixed on the plate, connect the invertednetwork cable (see Fig. 3.4) by connecting the green connectorto the PC network port (3) and the waterproof black connectorto the radar port(4)

Fig. 4.8 – Fixing the notebook PC

A sunshade can be applied to the notebook (see

1

A

3

4

3

B

2

D

C

Lever

Lockingsystem




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Fig. 4.9). Fix the lateral guides of the sunshade to the lateral sidesof the notebook screen. Then close and tighten the belt behindthe screen. The internal edges can be tightened as required.




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Fig. 4.9 – Assembling the sunshade

Another possibility is to work with the horizontal touch screen(see Fig. 4.10). In this case, first take out the touch pen, then fixthe lateral guides of the sunshade to the lateral sides of the

screen. Then close and tighten the belt under the laptop. Finally,tighten the inner edges of the sunshade.

Fig. 4.10 – Sunshade on horizontal screen

4.2.4

Connecting the position sensor

LATERAL

GUIDES




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Fig. 4.11 – Connecting the position sensor

The system position sensor is situated inside one of the trolleywheels and turns in unison with it (Fig. 4.11).

The sensor measures all movements of the Detector Duo fromits starting point, which coincides with the system centerpoint(which is the center of the antenna).

The sensor cable has to be connected to the WHEEL port (1) onthe Control Unit.

4.2.5

Removing the trolley wheels

If the wheels need to be removed for storage, press the black button labelled PRESS (indicated by the arrow) to the side of

the wheel and pull the wheel outwards. To reinsert the wheel onto the axis, it is sufficient to push it into

the support until the automatic block clicks into place (Fig.4.12)

1




33 / 80


Fig. 4.12 – Removing the trolley wheels

!NOTE

Remember to disconnect all the cables before putting thetrolley back into its storage bag (position sensor cable,antenna-DAD cable, network and power supply cable).




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5.2 Software installation and confi guration

Launch the icon of DetectorDuo setup file (Fig. 5.1).

Fig. 5.1 – Detector Duo setup icon

Click “Next” button on the window appearing (Fig. 5.2).

Fig. 5.2 – Detector Duo Welcome window

Select Typical setup type and then press “Next” button on the window

appearing (Fig. 5.3).

Click “Install” button on the window appearing (Fig. 5.4).

Click “Finish” button on the window appearing (Fig. 5.5).




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Fig. 5.3 – Setup type window

Fig. 5.4 – Pre-installation window




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Fig. 5.5 – Installation completed window

Automatically a shortcut of the DetectorDuo.exe will be created on to

desktop. The software will be installed automatically underC:\DetectorDuo\ directory.

Before using the Detector software, you have to configure thenotebook network card. To perform this operation in Windows 2000Professional or Windows XP Professional, follow the steps below:

Select the My Network Places icon with the right mouse button;

Select the Properties button.

Select the Local Area Connection (LAN) file with the rightmouse button.

Select the Properties command.




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Fig. 5.6 – Selecting the Ethernet card (TCP/IP)

Select Internet Protocol (TCP/IP) from the list of components

(in the general menu) with the left mouse button (see Fig. 5.6).

Select the Properties command.

The window shown in Fig. 5.7 appears, in which you have toselect Use the following IP address.

Write the following number in the IP address field: 192 . 168 .200 . 199.

Write the following number in the Subnet mask field: 255 . 255 .255 . 0.

Press OK to confirm the changes

!NOTE

Check that the DetectorDuo directory is copied into the C:\

drive and is not write protecting, otherwise the DetectorDuo SW will not function correctly.




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Fig. 5.7 – Changing the IP address

! NOTA

For a correct functioning of the software, please set aminimum display resolution of 800x600. Characterdimension must be 96dpi (normal).

! NOTA

To guarantee the correct functioning of the DetectorDuoSW, launch the Regional and Language Options icon onthe control panel then select Regional Options / Customize and the following configuration as shown below in the

Numbers field in Regional Options.




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5.3 The operational phases

5.3.1 Running the software

The DetectorDuo software permits data to be acquired, saved andviewed directly in the field. Once the notebook has been switched on,the DetectorDuo.exe program has to be launched by clicking on theicon shown in Fig. 5.8.

Fig. 5.8 – Acquisition software icon

Once the icon has been clicked, the software initializing windowautomatically opens (Fig. 5.9).




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Fig. 5.9 – Initializing window

5.3.2 Pre-acquisition commands

Pressing the button activates the calibration procedure of the processing parameters used on the acquireddata.

To perform this calibration, push the trolley a few meters then

press the button to save the parameters the softwareautomatically calculates (see Fig. 5.10).

!NOTE

Calibration can be repeated as often as required during asurvey, whenever the ground conditions change.




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Fig. 5.10 – Gain calibration underway

By pressing the button, you can avoid performingthe gain calculations, but in this way you can only view pre-existing radar maps.

The spy lights representing the radar (RADAR), battery(BATT), acquisition speed (SPEED) and acquired sweeps(SWEEP) indicate the current activity status of the system:

.

Pressing the color scale button allows you to select the desired

palette for viewing the radar maps: , , ,

, , , , , .

ACTIVE

NOT ACTIVE

UPPERGREYBAR




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You can zoom in on the maps up to a magnification of 4 by

selecting one of these buttons: , , , .

Press the button to shut down the software, thenconfirm your choice in the following message window

Press “Yes”; this is followed by the final message

.

Clicking twice on the upper grey bar of the first window (Fig.5.10), opens the Advanced settings window (Fig. 5.11), wherethe following parameters can be set:

Fig. 5.11 – Advanced settings window

Do you really want to quit the program?




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1. Wheel setting here you can set the acquisition mode of the system,which can be either

a. Wheel driven field selected, in this mode, the radaracquisition is set using the position sensor

b. If the wheel is not used, you can set the radar acquisition to be performed under a constant time regime; the valueinserted in the Auto Stacking field indicates the number ofsweeps averaged during the acquisition phase.

2. The Ground type field enables you to activate the Rough terrain option if it is necessary. When this option is activated, the radardata are temporarily saved on the selected Device during theacquisition phase. You can even select an external Device such as a

flash memory to temporarily save the data during the acquisition phases. This option is recommended when the ground conditionsare particularly rough, and when you may find that saving the dataduring the acquisition phase becomes critical due to the highnumber of vibrations in the system.

3. In the Measure uni t field, you can choose the measurement units to be applied to the radar map visualized in real time. The alternativesare m/cm and foot/inch

4. In the Swap axis field, you have the choice of modifying thevertical scale of the radar map by setting the value in m or nsec

5. In the Gain appli cation field, you can choose to view the radarmap acquired in real time with or without gain applied

6. In the Background removal field you can set the Clear_xapplication for the acquired radar maps.

7. Language this permits you to change the language used on thesoftware interface amongst those available (e.g. ITA = Italian, Eng= English).




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5.3.3 Commands used during acquisition

Data acquisition is started using the window shown in Fig. 5.12.

Fig. 5.12 – ACQUISITION SELECTION window

Press the button to go back to the pre-acquisition phase.

Press the button to close the software.

To start a new acquisition, write a name in the text box then press the button next to it

.

This will open the window shown in Fig. 5.13.




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Fig. 5.13 – NEW ACQUISITION window

!NOTE

Once a name has been given to a new survey, a file isautomatically created with the selected name in theC:\DetectorDuo\Mission\ directory. All data filescontaining acquired data will be automatically stored inthis file.

Press the button to stop and save the acquisition.The window shown in Fig. 5.12 then reappears.

The icon below reminds you that you can write some notes onthe scan in the text box underneath




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.

At this point you have two options:1. perform radar scans without setting any reference

coordinates simply to locally identify any buried utilities on-site;

2. perform geo-referenced scans to obtain an undergroundmapping of the site.

5.3.3.1 Acquisition for on-site detection

Press the button and start the acquisition by pushing thetrolley. The window shown in Fig. 5.14 appears, displaying the icon




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Fig. 5.14 – Radar map during the acquisition phase

During the acquisition, the user can also change the contrastvalue in real time, through the function

editing the number in the side textbox, as shown in Fig. 5.14.

If you note the appearance of a hyperbola on the screen duringacquisition (generated by a buried pipe or cable), go back,

moving the trolley in the opposite direction to the acquisitiondirection. This temporarily suspends acquisition and produces avertical line on the data screen (see Fig. 5.15).




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Fig. 5.15 – Identifying a target

This vertical line permits you to position the trolley on the axisof the identified pipe or cable, you can then mark the positionon the ground in correspondence to the center point of theantenna, as shown in Fig. 5.16.

Fig. 5.16 – The antenna center point

!NOTE

The centerpoint (1) of the system is situated in the central point of the antenna (see Fig. 5.16) and it represents thestarting point when reading radar maps (red line on theground).

RADAR

ANOMALY

1




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Use the and buttons to position the horizontal cursoron the peak of the chosen hyperbola (see Fig. 5.17).

Fig. 5.17 – UP/DOWN functions

In particular, during the acquisition phase, both the radar maps can beviewed (Fig. 5.18) when the DUAL 250-700 antenna is operated. Infact, initially, the software automatically displays the “Shallow” radar

section (700MHz); to view both the sections together , click once withthe left mouse button in the bottom right section named “Deep” to

make the radar section for the 700MHz appear together with the250MHz antenna. The two sections are separated by a yellowhorizontal line.

Then by clicking twice with the left mouse button on the horizontal

yellow line and dragging upwards or downwards, the two maps can beviewed in more or less detail. In addition, if the “Shallow” and “Deep”

labels in the top left of the sections hide a target, they can be moved tothe bottom right of the radar maps simply by clicking twice with theleft mouse button on the yellow “Shallow” or “Deep” labels.

HORIZONTAL

CURSOR




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Fig. 5.18 – DUAL display during acquisition

The button permits the type of pipe and its position to bemarked on the chosen point of the radar map. The windowshown in Fig. 5.19 appears automatically. The icons representsome types of pipe (from the top left clockwise we have Gas,

Electric Cable , Telephone Cable , Water Pipe , Unknown Pipe,

Sewage Pipe, Public Illumination cable, Traffic Light cable.




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Fig. 5.19 –

Icons for types of pipes and cables

By pressing the button, you can remove a previouslyselected marker.

!NOTE

The system can’t identify the types of pipe or cable. This

information can be found from other sources, such asopening manhole covers or consulting technical maps.

5.3.3.2 Acquisition for mapping

In this second case, select the button (Fig. 5.13) to set the starting point coordinate al fine; the window shown inFig. 5.21 automatically opens.

You then have the chance to choose the following acquisition

parameters: The acquisition direction as either Longitudinal or

Transversal. When filling in this field, remember that Longitudinal (L) means the scans is performed parallel tothe zero reference line (T axis), while a scan

perpendicular to this line is called a Transversal scan (T)(See figure Fig. 5.20).




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LongitudinalScan

L1

L2

L3

-L1

-L2

-L3

T1 T2 T3

TransverseScan

REFERENCEGRID

Origin

0 - 0 T axis

L -Axis

Fig. 5.20 – Diagram of the T-L cartesian reference system

Coordinate (m): This field allows you to insert thevalues of the set T or L co-ordinate. Remember toindicate if a coordinate is negative. Check the current

T or L coordinate on the site and insert it into therelative field Remember that, despite the actualdimensions of the antenna box, it is represented inthe Cartesian reference system by a single point thatcorresponds to its centerpoint. When moving theantenna box, make sure the centerpoint is on the scanline, at the defined coordinate.

o Coord. value: insert the value of the coordinateto be maintained constant during the scan in this

field.o Coord. Step: this field contains the step value

that is added automatically to the current valuewhen a scan is finished, leaving the systemready to start the next scan. The preset value = 2m between scans. For example, if a longitudinalscan has been chosen and it starts from a pointwith coordinates T, L = 0 ;+2 m, the followingvalues must be set:




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Longitudinal;

2 in the Coord value field;

2 in the Coord. Step field.

Once the scan is finished, the coordinate ofthe L value is automatically positioned on thevalue 4.

!BE CAREFUL

The Antenna Box may only be moved in one direction. It mayonly be pulled or pushed in the direction of increasing scanningcoordinates.

Scan Offset (m): each radar scan is characterised by aninitial L and/or T co-ordinate Therefore, once you haveinserted the starting point co-ordinate for the investigation(“coord. value”) as a function of the type of scan, the

other reference co-ordinate must be defined in the “Scan

Offset (m)” field. The following option must then beselected:

On L/T coordinate” selection

Here, you have to manually measure the value ofthe co-ordinate corresponding to the centerpoint ofthe antenna box with respect to the referencesystem selected previously, and insert it into theactive field.

For example, if you have to perform a transversalscan starting from the co-ordinate T=2 and L=2,you must set the type of scan to Transversal andthen set the actual value of the T co-ordinate (e.g. 2m) in the “Coordinate (m) ” field. Next, activate the

“ L coordinate” in the “Scan Offset (m)” area,

setting it to 2 in this case. The scan can now be performed.




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Fig. 5.21 – Acquisition parameters window

There are three boxes in a grey bar above the acquired radarmaps (Fig. 5.14) (see below) these show the followinginformation:

Left box:

o The name of the scan to be performed “Next” (in the

example LZZx0003);

o The “Coordinate value” (in this example 2.00m);

o The “Scan Offset” (0m in this example)

Central box :o The name of the preceding scan, “Prev” (in this example

LZZx0002);

o The “Coordinate value” (in this example 1.00m);

o The “Scan Offset” (in this example 0m);

Right box:

o The distance travelled by this system, “Dist” (in this

example, 13.47m).

VIRTUALKEYBOARD




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5.3.4 Depth calibration

Pressing the button produces a box where you canwrite the exact depth of the pipe or cable if it known from

another source (for example from technical maps or fromopening manhole covers)

.

Otherwise, the following window will be opened if the

button is pressed

from where the correct propagation speed can be selected by

adapting the curve to the hyperbolas using the and buttons.




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!NOTE

In both cases, you have to select one of the icons shown inFig. 5.19 to confirm the depth of the identified pipe. Thisoperation can be repeated several times during theacquisition: a symbol will appear at calibration points

describing the type of the characteristics of the detected pipe

.

Press the button to finish the scan while remaining inthe open survey.

Press the button to save the scan file onto the computerhard disk (in the C:\DetectorDuo\Mission directory); you cancontinue the same scan by moving the trolley in the samedirection.

Press the button to finish the scan and go back to themain menu shown in Fig. 5.12 to choose a new survey..

5.3.5 Post-acquisition commands

The following commands can be activated from the ACQUISITIONSELECTION window (see Fig. 5.12):

1. ;

2. ;

3. ;

4. .




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Any of the surveys saved on the computer can be deleted by

pressing the button; select the survey nameand press the delete button, the software requests you to confirm

your choice (Fig. 5.22).

Fig. 5.22 – Deleting a survey

By pressing the button, the last survey can be reloaded to continue performing further scans in it (Fig.

5.23).




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Fig. 5.23 – How to rename a survey

By pressing the button, the last survey can bereloaded so as to continue performing further scans in it.

Press the button to review all the scans containedin the selected survey. The first radar map of the selected surveywill appear, onto which further markers can be added if requiredas described previously. In addition, all previously identifiedhyperbolas will be marked with a circle and a vertical line (Fig.

5.24).




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Fig. 5.24 – Insertion of a Marker during the review phase

!NOTE

Further hyperbolas can be selected or previously insertedinformation can be reloaded using the mouse or the

buttons on the lower tool bar. It is sufficient to click incorrespondence to the vertical line shown in Fig. 5.24.

You can then press:

The button to move the review line about 2.5cm to theright;

The button to move the review line about 50cm to theright;

The button to move the review line about 2.5cm to theleft;

The button to move the review line about 50cm to the

left.

CIRCLEVERTICAL

LINE




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the lower tool bar can also be used to select and reload:

previous scans by selecting the button,

subsequent scans by pressing the button. finally, the radar maps, together with all the additional

information included on them can be oriented by pressing the

button and selecting the desired printer (Fig.5.25).

Fig. 5.25 – Print function

press the button to close the editing application, thewindow shown in Fig. 5.22 will reappear.

An example of a radar map printout is shown in Fig. 5.26.




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Fig. 5.26 – Final printout of a radar map

press the button to close the program.

The window shown in Fig. 5.27 reminds you to disconnect the power supply cable from the Control Unit to avoid wasting batterycharge.

Fig. 5.27 – Closing the program




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5.4 Error messages

Error messages found in the program are listed below (in italics)followed by their solutions:

Network error. Retry or check hardware!

Check that the network cable is connected properly to the PC and theDetector Control Unit. Try restarting the program.

New depth must be > 0. Please insert new value to continue.

New depth must be > 0. Unable to set the depth

New depth missing. Please insert value to continue.

Select a new value for the depth of the identified pipe.

Warning. Unable to print on the selected printer

Check that the printer is switched on and connected to the computer.

Unable to review: calibration file has been lost.

The calibration files for the selected survey have been deleted. To beable to see the data, the Igr.bkg and Igr.stc files have to be copied fromthe main program directory (C:\DetectorDuo\) into the surveydirectory.

Unable to review: mark file has been lost

A system file has been deleted, making it impossible to review theselected acquisition.

Unable to mark: marker already present at this distance!

You have tried to insert a pipe in a point already containing one; selecta new point.

Gain calibration has been skipped (or lost). Calibrate gain to

proceed.

Unavailable: gain calibration has been skipped (or lost).

Unavailable: gain calibration has changed.

A calibration has to be performed to be able to acquire data. SeeParagraph 5.3.2. for calibration instructions

Unavailable: directory has been lost.

The last acquisition cannot be recovered , select a new acquisition




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6. USING GPS WITH THE DETECTOR DUO SYSTEM

The Detector Duo system can acquire GPS data in NMEA$GGA

format. You therefore have to set the GPS receiver so that the dataoutput through the serial port or Ethernet port is in NMEA$GGAformat.

The serial communication between the GPS and the notebookcomputer must be set up for GPS as follows:

Baud rate: 9800;

Byte size: 8;

Parity: No;

Stop bits: 1.

GPS data acquisition procedure with the DetectorDuo FW system:

Step 1 Connect the GPS receiver to the Panasonic CF-19 (or with some

others notebook with the serial port) using the serial cable shown in Fig. 6.1

Fig. 6.1 – Connecting the GPS to the notebook computer

Step 2 Open the External device settings after having clicked on theDetectorDuoFW icon at the top left of the main window (seeFig. 6.2).

Notebook

NotebookGPS

Serial Cable




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Fig. 6.2 – External device settings command

Step 3 In the External device settings window, select the External

device type field then select the type of GPS connection as RS-232 GPS (Fig. 6.3)

Fig. 6.3 - External device settings window

Step 4 Click the COM Setting button; this opens the window shownin Fig. 6.4, from where you can set the parameters shownaccording to the characteristics of the GPS being used.




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Fig. 6.4 – Com settings window

For example, selecting External device type RS-232 GPS :

Select 1 in the Com menu (or set the number of theCOM port number the GPS is connected to) and theother parameters according to the GPS characteristics;

Use the Acq. Step traces field in Fig. 6.3 to select thenumber of sweeps interval the GPS data will beacquired with. For example, if you have set theAcquisition Step traces to 20, the system will acquire

the GPS data every 20 traces if the Acquisition Steptraces= 1, the DetectorDuoFW system will uptake allthe information produced by the GPS according to thetime parameters set on GPS equipment.

Step 5 The GPS antenna coordinates will be insert the text box GPS

offset X and Y and referred to the barycenter system in theantenna (see Fig. 6.5)




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Fig. 6.5 –

GPS coordinates

Step 6 Accept the parameters set in the COM settings field byclicking the OK button, as shown in Fig. 6.4.

Step 7 Correct functioning of the GPS and its communication with theDetecorDuoFW system is indicated by the GPS spy light in theacquisition window; when the light is green, the GPS is

correctly connected and functioning; when the GPS is red,either the connection between the GPS and DetecorDuoFWsystems has not been correctly made or the GPS is switched off(Fig. 6.6).

X axis

Y axis

System barycenter

Antennaadvancingdirection




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Fig. 6.6 – GPS spy

Remember that the GPS spy light only indicates thecorrect functioning of the GPS, not the accuracy of theGPS readings; to evaluate precision, use the tools suppliedwith the GPS system

Step 8 The GPS data in NMEA$GGA format are saved as an ASCIIfile in the same directory as the radar data; the GPS files havethe same numbering as the radar files, but have a *.GPSextension (see the example shown in Fig. 6.7). During theradar data acquisition phase, you can check the GPSacquisition data using white Markers placed at the bottom ofthe radar map.

GPS spy light




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Fig. 6.7 – Example of a GPS file

Step 9 In addition to the GPS files the KML files are created too (asshown in the Fig. 6.8). The KML is a file format used todisplay geographic data in an Earth browser, such as Google

Earth. So to open this file the Google Earth needs to beinstalled.

Fig. 6.8 – Example of a KML file

GPS file format

GPS file

KML file

Radar file




70 / 80


By opening the KML file the user can visualize theAcquisition path on the Google Earth (see Fig. 6.9).

Fig. 6.9 – Example of a visualization KML file

Acquisition

Path




71 / 80


7. WORK PROCEDURE FLOWCHART

PIPEOR

CABLE

NO

YES

INSPECTION

GAINCALIBRATION

SCAN: PUSHTROLLEY

SELECTSURVEY

SWITCH ONDETECTOR

DUO

OPENMANHOLES

ASSEMBLEDETECTOR

DUO

ENDSCANNING

ESTIMATEPROPAGATION

SPEED

INSERTMARKER

GO

BACK

CHANGEIN

GROUNDTYPE

YES

NO

REVIEWACQUIRED MAPS(SHALOW/DEEP)

PRINT

USETECHNICAL

MAPS




72 / 80


8. HOW TO USE THE DETECTOR

The main targets when performing utilities investigations with the

DetectorDuo consist of either extended structures (such as an interface between layers, pipes parallel to the investigation direction etc.) orquite small structures (such as pipes perpendicular to the investigationdirection, cavities and rocks etc.).

Fig. 8.1 shows how a flat interface gives rise to a flat trace while asmall structure such as a pipe produces a hyperbolic trace. This is

because the echoes form the flat plane at different values of x take thesame time to reach the DetectorDuo. For the pipe, however, the echoesfrom its sides take a longer time to reach the DetectorDuo than the

echoes from its top surface.

Fig. 8.1 – Trace of a pipe perpendicular to the direction of investigation and a flat interface

The aperture of a hyperbola depends on various factors:

DETECTORDUO

DETECTORDUO

DETECTORDUO

DETECTORDUO

Pipe

Interface

twt twt

x x




73 / 80


o As the propagation speed in the medium increases (vm), the ratio between the flight time of the outwards and return signal twt relative to echoes originating from lateral points and the twt relating to the top surface of the target decreases. Therefore the

hyperbola widens with higher propagation speed, vm.o With increasing depth of the target, the ration between the twt

relating to the echoes from the side points and the twt relating tothe top surface of the target decreases. Again, the hyperbolawidens with increasing target depth.

o For equal propagation speed, depth and type of target, thehyperbola will be wider for geometrically larger targets (forexamples for wider diameter pipes).

When interpreting the maps, it is therefore a good idea to rememberthat the width of a hyperbola does not just depend on the geometricalsize and shape of the target. Fig. 8.2 shows two maps featuring echoesof an irregular interface between two layers with different dielectric

properties (asphalt) and six pipes situated perpendicularly to thedirection of investigation.

Fig. 8.2 – Maps showing traces of an interface and pipes perpendicular to the direction of

investigation

interface

Topsurface

of thepipes




74 / 80


As can be seen in Fig. 8.2, the echo of a target doesn’t simple consist

of a single dark band, it consists of alternate dark and light bands.These derive from the signal minimums and maximums reflected backfrom the target (in fact, the black and white bands represented in the

figure correspond to maximum and minimum signal amplituderespectively). A hyperbolic echo can be used to convert the ordinate ofthe map from time (nanoseconds = ns) to depth (meters= m). To dothis, the hyperbola traced in ns ordinates is compared with a family ofhyperbolas traced with ordinates in meters, obtained from that in nsordinates with various values of vm. The best vm approximation to thereal value is that with the most similar aperture to that of the onetraced in time ordinate. Once vm has been identified, the depth of thetarget corresponding to the hyperbolic section can be found. There are

no definitive criteria for interpreting diagrams and often you have todepend on experience. In any case, it is best to collect the largest possible amount of information for an area under investigation, anduse it to help choose the most appropriate equipment and investigation

parameters. To conclude, we have an example below of a real situationfeaturing two pipes side by side (Fig. 8.3). This example is significantin that it shows the diagrams of the same structure (the pipe) placed

perpendicularly then parallel to the direction of investigation.

Fig. 8.3 – Example of map interpretation

Scan 3

Pipetopography

B

A

A B

A

PIPE B

Scan 1

Scan 2

PIPE A




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9. ON LI NE ASSISTANCE

9.1 Remote assistance using Webex Suppor t Center

Webex Support Center is a service that allows the activation of a twohost session, making an application, or the desktop available to theother user or letting you capture another remote desktop.

It can be used to perform web conferences and presentations.

It is easy to use thanks to its simple and intuitive interface.

Since there are no firewalls or other types of network configurations, itis a fast and secure means of reaching any client host in any part of theworld. In fact, the client only has to accept to download a small plug

used to permit the service authentication and functioning.

9.1.1 How to use the Webex service

You will receive an email from IDS Customer Care containing a linkto the support session (see Fig. 9.1).

Fig. 9.1 – Mail sent by IDS to the client

Once you have clicked on the link sent by email, the following

window will appear. Insert your data into the form (see Fig. 9.2).




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Fig. 9.2 – Client data insertion form

Once you have clicked Submit, the following page will appear showing a downloading bar. The session starts as soon as thedownload is complete. (see Fig. 9.3).

Fig. 9.3 – Webex Set up window

As you can see from the following screen (Fig. 9.4) you are given aconsole, just containing the Chat, Video and Leave Session

commands.




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Fig. 9.4 – Welcome to Webex Support Center window

At this point, IDS Customer Care can perform a range of operations on

your desktop:

Request control of the desktop using the Request Controlcommand.

Give you control of the IDS desktop using the Share Controlcommand.

Request to display the remote desktop using Request View.

Share the visualisation of the IDS desktop using Share View.

Before each command is activated, you are asked for confirmationthrough the following window (Fig. 9.5).




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Fig. 9.5 – Command acceptance window




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APPENDIX A - THE PRELIM INARY INVESTIGATION

The first fundamental phase for any field survey consists in the

preliminary investigation: its scope is to acquire all the necessaryinformation for the logistics of the operation, taking into account theobjectives to be performed.

In the specific case of a georadar investigation for undergroundutilities searching, the first thing to consider is the accessibility of thesite, in terms of taking into account the space available for the passageof the antenna trolley and considering any architectural obstacles thatcould cause an obstacle to the data acquisition phase. Often, in fact,the investigation is performed in streets, squares and on pavements

with a relatively high level of urban traffic, and above all, in the presence of randomly parked cars.

The main points to be considered during this phase are described below:

Specific permissions must be obtained (access to pedestrianzones, permission to interrupt the traffic flow, etc.);

Any difficulties in accessing the site must be considered;

The space available;

The presence of parked cars;

The level of traffic;.

It is the task of the user to take these points into consideration when programming the work.

APPENDIX B - THE TECHNICAL MAPS

Technical maps of the existing utilities are produced by the variousutilities companies.

These give general indications in a schematic way about the type and position of the utilities that are managed and/or have been constructed by them.

These maps can be requested by faxing or writing to the cartographicor planning office of the companies, specifying clearly the streets and

areas of interest.




The most important types of utilities (which may be managed bydifferent agencies) to be considered are:

Public Street Lighting

Low, Medium and High Voltage Electricity Cables

Water supply

Gas

Telephone Cables

Sewers

Even though they may be very generic, these maps represent animportant support during the extraction and data interpretation phases,since they give the user a first idea, if not an exhaustive one, of theutilities that are present.

For this reason, it is important that the user activates the proceduresfor obtaining these maps well in advance to make sure that they will

be available during the data extraction phase.

APPENDI X C - OPENI NG MANHOLES

This phase is normally performed once the acquisition phase has beencompleted, and consists in opening the manholes present in theinvestigated site.

The data regarding the depth, diameter, and direction of the utilityshould be saved on the work sheet: this will provide you with furtherreference data during the interpretation phase, and will allow

propagation velocity estimates to be performed in order to calculatethe depth of the identified utility as precisely as possible.

Detector Duo Eng

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